Overclocked Cafe checks out the LI Utilies WinTask 4 Professional software.
How does it perform? Check it out here.

The problem is I like taking things to the edge, and because both operating
systems are designed for general release they have to hit a happy median of
compatibility and stability for a ever growing base of very different hardware,
this translates into automating an awful lot of things that consumers really
don't want to hassle with (anyone remember having to set your IRQ's manually?
Nuff said.) This works great for the rank and file, but people like myself who
are just compelled to fart around and try squeaking that last little bit of
oomph from the current rig need a way to grab back some control if we can.